(function($){
	$.fn.smartInput = function(params){
	
		var params = $.extend(  
		{  
			'alwaysErase' : false
		}, params || {} );
		
		var obj = $(this);
	
		function smartEnter(obj){
			var obj = $(this);
			
			lastVal = obj.val();
			
			if ((obj.val() == params.text || lastVal == obj.val()) && params.alwaysErase)
				obj.val('');
			else if (!params.alwaysErase && obj.val() == firstVal)
				obj.val('');
		}
	
		function smartBlur(obj){
			var obj = $(this);
			
			if (obj.val() == '' && params.alwaysErase)
				obj.val(lastVal);
			else if (obj.val() == '' && !params.alwaysErase)
				obj.val(firstVal);
		}
	
		if (obj){
		
			var lastVal, firstVal;
			if (obj.val() == ''){
				firstVal = params.text;
			}else{
				firstVal = obj.val();
			}
			
			obj.click(smartEnter);
			obj.focus(smartEnter);
			obj.blur(smartBlur);
		}
	};
})(jQuery)